Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9808023 | Process for producing purified tea extract | Eizo Maruyama, Yukiteru Sugiyama, Kenichi Shikata, Keiji Shibata | 2017-11-07 |
| 9414613 | Tea extract | Hitoshi Sato, Keiji Shibata | 2016-08-16 |
| 8697171 | Preparation process of purified green-tea extract | Masaki Iwasaki, Norihiko Satake, Shinji Yamamoto, Naoki Hosoya, Eiichi Hoshino +2 more | 2014-04-15 |
| 8445031 | Method for producing purified tea extract | Eizo Maruyama, Keiji Shibata | 2013-05-21 |
| 7981449 | Production process of purified green tea extract | Yukiteru Sugiyama | 2011-07-19 |
| 7667059 | Process for producing glycerin and fatty alcohol via hydrogenation | Toru Sakamoto, Nobuhiro Tatsumi | 2010-02-23 |
| 7579508 | Process for producing alcohol | Toru Sakamoto, Osamu Tabata | 2009-08-25 |
| 6288287 | Process for preparing glycerol | Takanobu Katayama | 2001-09-11 |
| 6049013 | Method for producing alcohol | Osamu Tabata, Tohru Sakamoto | 2000-04-11 |
| 6002054 | Method for producing alcohol | Futoshi Nishigaki, Osamu Tabata | 1999-12-14 |